condition	mean	min	max
4 h after light	5.735125	5.22004	6.25021
8 h after light	9.936035	9.42397	10.4481
12 h after light	17.32565	14.7602	19.8911
4 h after dark	19.17455	18.1665	20.1826
8 h after dark	11.1603	10.5122	11.8084
12 h after dark	10.2224	10.2147	10.2301